Shelly
Shelly Duo Bulb E27 Gen3 (tunable white)
- Works with HA
- Local control
- Wi-Fi
- Bluetooth
Prices verified September 2026
See more smart lighting picks on our Amazon storefront →Our verdict
Shelly is one of the few lighting brands with official Works with Home Assistant certification, and the Duo Gen3 behaves like all Shelly kit: fully local Wi-Fi, instant push updates, even MQTT if you prefer. It's tunable white only — no colour — so if you want RGB scenes, WiZ or IKEA's KAJPLATS bulbs are cheaper and simpler. What the Duo offers instead: Wi-Fi rather than Matter/Zigbee, a genuine Bluetooth proxy for battery sensors (it's mains-powered), and on-device scripts that keep circadian schedules running through a Home Assistant outage. Best for tinkerers already running Shelly gear, not casual buyers who just want a warm-white bulb that dims from an app.
What can Home Assistant control on the Shelly Duo Bulb E27 Gen3 (tunable white)?
| Control | Type | What it does |
|---|---|---|
| Light | Light | Single light entity exposing brightness (0-100%) and colour temperature (2700K-6500K) as attributes rather than separate entities — no RGB/hue attribute since this is white-spectrum only. |
| Script switch | Switch | Toggles a specific on-device script on or off; one switch entity is created per script uploaded to the bulb, letting HA enable/disable device-local automations remotely. |
| Bluetooth proxy | Config toggle | As a mains-powered device, the bulb can act as a Bluetooth advertisement proxy, forwarding BLE broadcasts from nearby battery sensors to Home Assistant. |
| Firmware update | Update | Reports available OTA firmware versions and allows triggering the update from Home Assistant. |
| Signal strength | Sensor | Wi-Fi RSSI, exposed for connection troubleshooting. |
Gen3 devices talk to Home Assistant over the RPC/WebSocket protocol instead of Gen1's CoIoT broadcast, so there's no CoIoT peer configuration or the repair-issue nagging that shows up when a Gen1 device's CoIoT setup drifts — the integration just connects and pushes state changes instantly. Brightness and colour temperature (2700K-6500K) aren't separate entities; both live as attributes on a single light entity, so dashboards expecting a dedicated colour-temp slider need an explicit call carrying both parameters. Because Gen3 ships Shelly's own scripting engine, you can push a circadian colour-temp schedule directly onto the bulb's own interface that keeps running through a Home Assistant outage or Wi-Fi drop, then expose a switch entity in HA purely to enable or disable that on-device script remotely.
Specs
| cri | >80 |
|---|---|
| lumens | 806 lm |
| wattage | 8.5 W |
| base type | E27 |
| dimmable range | 3%-100% |
| lifespan hours | 15,000 hours |
| colour temp range | 2700K-6500K |
How does the Shelly Duo Bulb E27 Gen3 (tunable white) compare?
| Product | From | Protocol | Local control | Integration |
|---|---|---|---|---|
| Shelly Duo Bulb E27 Gen3 (tunable white) (this product) | £9.9 | Wi-Fi, Bluetooth | Yes | Works with HA |
| Athom WLED WS2812B LED strip controller (pre-flashed) | £6.5 | Wi-Fi | Yes | Native |
| Govee Flow Plus RGBICWW light bars H6056 (twin pack) | £69.99 | Wi-Fi, Bluetooth | Yes | Native |
| Govee RGBIC LED Strip Light H619A (5 m, protective coating) | £39.99 | Wi-Fi, Bluetooth | Yes | Native |
Frequently asked questions
- Does the Shelly Duo Bulb E27 Gen3 (tunable white) work with Home Assistant locally?
- Yes. The Shelly Duo Bulb E27 Gen3 (tunable white) is controlled locally in Home Assistant through a certified "Works with Home Assistant" integration (shelly), so it keeps working if your internet connection or the Shelly cloud goes down. Control and state updates stay on your own network.
- Which protocol does the Shelly Duo Bulb E27 Gen3 (tunable white) use, and do I need a hub?
- The Shelly Duo Bulb E27 Gen3 (tunable white) uses Wi-Fi and Bluetooth. To pair it with Home Assistant you need no hub — it joins your Wi-Fi network directly; or a Bluetooth adapter on your Home Assistant host or an ESPHome Bluetooth proxy. Shelly's own hub is not required when you integrate through a certified "Works with Home Assistant" integration (shelly).
- How much does the Shelly Duo Bulb E27 Gen3 (tunable white) cost in the UK?
- The lowest price we have listed for the Shelly Duo Bulb E27 Gen3 (tunable white) is £9.90 at Shelly.com. Prices were last checked in September 2026 and change often, so confirm on the retailer's page before buying.